Buffing wheel



1941. c. J. PETERSON ETAL 2,251,690 I BUFFING WHEEL Filed June 11, 1940 2 Sheets-Sheet l m Y n m a W Nrr R W w my & JH A r um w Patented Aug. 5, 1941 UNETED STATES PATE T OFFICE BUFFING WHEEL Clarence J. Petersonand Arthur H. Peterson,

Meriden, Conn.

Application June 11, 1940, Serial No. 339,868

11 Claims. (01. 51193) This invention relates to bufling or polishing wheels, and more particularly to an improved form of laminated buffing wheel and to the method of making the same.

One object of this invention is to provide a.

buffing wheel of the above nature in which the laminations comprise a plurality of overlapping strips, whereby the heat generated during use will be rapidly dissipated.

A further object is to provide a laminated,

bufiing wheel of the above nature employing strips of fabric, crinkled paper, or both.

A still further object is to provide a bufiing and polishing wheel made from a continuous strip of crinkled paper having spaced rows of slits extending inwardly from the opposite edges thereof.

Still another object is to provide a bufiing wheel of the above nature which will be simple.

in construction, inexpensive to manufacture, readily manipulated, compact, and Very efilcient and durable in use.

With these and other objects in view, there tirely of crinkled paper, also embodying the in-- vention.

Fig. 3 is a development view of the overlapped alternate strips of cloth and paper used in forming the bufiing wheel shown in Fig. 1.

Fig. 4 is a side view of the same.

Fig, 5 is a face View similar to Fig. 1 of a modified form of composite buffing wheel in which the cloth layers are of larger diameter than the alternating paper layers.

Fig. 6 is a development view of a modified form of continuous strip from which the bufling wheel may be constructed, having alined slits cut into its opposite side edges to provide the necessary Ventilation.

Fig. '7 is a development view similar to Fig. 6 of another modified form of continuous strip in which staggered edge slits are employed.

Referring now to the drawings wherein like reference numerals denote corresponding parts throughout the several views, the numeral 50 indicates a buffing wheel having alternate layers or discs of paper and cloth formed from overlappingpaper. and cloth strips 5| and 52, respectively, as illustratedin Figs. 3 and 4. The paper from which the strips. 5| are made is preferably crinkled or rippled, as shown, with the serrations of the crinkles 53 extending. crosswise of the strips, whereby in the finished bufiing wheel the crinkles will lie in radial. linesextending from the center opening l5 to the periphery of the bufiing wheel. The paper used may be made from woodpulp, rag stock, or any other desired screened fibre.

I After. the desired number of paper and cloth strips have been laid down in overlapping relation on a fiat surface as shown in Figs. 3 and 4, thejassembly will be wound into cylindrical shape about a slotted drum, such as shown in Fig. 4 of a. co-pe'nding application, Serial No. 213,613. filed June 14,1938, of which the present application is a continuation in part, said drum being therein shown as comprising a pair. of spacedapart beveled discs secured to an integral smaller hub, the diameter of which corresponds to the size of the buffing arbor (not shown).

In order to draw the central portion of the wound up cylindrical strips inwardly into the slot formed, between the beveled discs, provision is made of 'a cord I8 having its ends tied together to cause the wheel to assume the shape shown in Fig. 1'. The wheel 50 is then stitched in a circular line at 20 to hold the bent-in sides of the material together about the cord l8. Other circular rows of stitches, not shown, may also be provided concentric with the circular stitching 20 to, further stiffen the wheel if desired. It will also be understood that spiral stitching may be substituted for this purpose, if desired, within the spiritlof the invention.

It is also within the purview of this invention to omit the cloth strips from the form shown in Figs. 1, 3' and 4 so that the buifing wheel will be composed entirely of overlapped crinkled paper strips 5ia, as indicated in Fig. 2.

In the modified form of the invention shown in Fig. 5, a composite wheel 54 is disclosed, formed from alternating relatively large cloth strips 55 and relatively small crinkled paper strips 56 assembled into disc form in the same manner as described above for the first form of the invention shown in Figs. 1, 3 and 4. A binding cord 51 similar to the cord I8 is employed, and a row of circular stitching 58 is provided surrounding the central arbor-receiving opening 59.

In the modified all-paper form of the invention disclosed in Fig. 6, an elongated continuous strip 60 is provided having two rows of inwardly extending alined slits 6| and 62 on its side edges-said slits terminating short of the center line of said strip and serving to provide the necessary ventilation to the finished bufiing wheel.

In Fig. 7 a similar elongated strip 63 is disclosed, having two rows of inwardly extending staggered slits 64 and 65, which provide for the necessary ventilation. The inner ends of said slits overlap beyond the center line of said strip. This strip 63, when wound up cylindrically and drawn inwardly by a tying cord, also forms an all-paper buiiing wheel.

One advantage of the present invention is that by providing overlapping unconnected strips or rows of inwardly extending slits in the opposite side edges of the buffing wheel strips, the heat developed during bufiing will be rapidly and emciently dissipated therefrom.

While there have been disclosed in this specification several forms in which the invention may be embodied, it is to be understood that these forms are shown for the purpose of illustration only, and that the invention is not to be limited to the specific disclosures but may be modified and embodied in various other forms without departing from its spirit. In short, the invention includes all the modifications and embodiments coming within the scope of the following claims.

Having thus fully described the invention, what is claimed as new and for which it is desired to secure Letters Patent is:

1. In a bufiing wheel, a plurality of longitudinally overlapping layers of crosswise crinkled paper strips rolled into cylindrical shape and then drawn into the form of a fiat disc having a central opening, the side edges of said strips forming the circular periphery of the completed buffing wheel, and a tying cord for holding said wheel in assembled disc-shaped position, the flat opposite side faces of said wheel being stitched together to stifien the wheel all of the crinkles in the completed wheel being radial to the axis of said wheel.

2. In a bufiing wheel, a plurality of layers of paper discs having radial corrugations formed from a continuous strip or" crinkled paper having parallel side edges provided with inwardly extending slits therein, said strip being rolled into cylindrical shape and then drawn into the form of a flat disc having a central opening, a tying cord for holding said strip in disc shape, said slits lying at the periphery of the completed bufling wheel to provide ventilation therefor.

3. In a buffing wheel, a plurality of layers of paper discs having radial corrugations formed from a continuous strip of crinkled paper having parallel side edges provided with inwardly eX- tending slits therein, said strip being rolled into cylindrical shape and then drawn into the form of a flat disc having a central opening, a tying cord for holding said strip in disc shape, said slits lying at the periphery of the completed bufiing wheel to provide ventilation therefor, the slits of said strip lying in alined pairs, the inner ends of which are disposed outside the center line of said strip.

4. In a bufiing wheel, a plurality of layers of paper discs having radial corrugations formed from a continuous strip of crinkled paper having parallel side edges provided with inwardly extending slits therein, said strip being rolled into cylindrical shape and then drawn into the form of a flat disc having a central opening, a tying cord for holding said strip in disc shape, said slits lying at the periphery of the completed buifing wheel to provide ventilation therefor, the slits of said strip being staggered, having their inner ends overlapped and extending inwardly past each other beyond the center line of said strip.

5. In an all-paper bufiing wheel, a plurality of superposed layers of radially crinkled paper having a common central opening, said wheel being made from an elongated fiat blank of crosswise crinkled paper rolled into cylindrical shape, and a tying cord for drawing said blank inwardly from cylindrical into fiat condition, all of the crinkles being radial to the axis of the buffing wheel.

6. In a fiat blank for forming a bufiing wheel by rolling into cylindrical shape and then drawing inwardly along a medial line into flat circular shape, a plurality of superposed longitudinallyspaced overlapped elongated strips of crinkled paper, the crinkles extending crosswise in the original strips so that all of said crinkles will lie radially in the final hurling wheel.

7. In a bufiing wheel, a plurality of superimposed alternating elongated strips of cloth and crinkled paper, the crinkles of said paper strips originally extending crosswise, said strips being rolled together as a unit to form a cylindrical tube and then drawn inwardly by a tying cord along their lengthwise median line to form a fiat apertured disc with all of the paper crinkles disposed radially.

8. In a buffing wheel, a plurality of superimposed alternating elongated strips of cloth and crinkled paper, the crinkles of said paper strips originally extending crosswise, said strips being rolled together as a unit to form a cylindrical tube and then drawn inwardly by a tying cord along their lengthwise median line to form a fiat apertured disc with all of the paper crinkles disposed radially, said cloth strips being wider than said paper strips so that in the completed bufiing wheel the final paper discs will be of smaller diameter than the final cloth discs.

9. In a buffing wheel, an elongated strip of paper having parallel outer side edges provided with slits extending thereinto, said strip being rolled to form a cylindrical tube and then drawn by a tying cord to form a flat disc with a central aperture.

10. A bufiing wheel as set forth in claim 9, characterized by having the slits in said strip extending only part way through the width thereof.

11. The method of making a buffing wheel which comprises cutting crosswise slits in the opposite side edges of an elongated continuous strip of crosswise crinkled flexible paper, rolling up said strip into the form of a cylinder, drawing said cylinder inwardly along the center line of said strip to form a flat disc with the crinkles of said paper extending radially outward from the axis of said disc, and then securing the outstanding sides of said disc together.

CLARENCE J. PETERSON. ARTHUR H. PETERSON, 

